* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download cells
Survey
Document related concepts
Biochemical switches in the cell cycle wikipedia , lookup
Cell nucleus wikipedia , lookup
Tissue engineering wikipedia , lookup
Cytoplasmic streaming wikipedia , lookup
Signal transduction wikipedia , lookup
Extracellular matrix wikipedia , lookup
Programmed cell death wikipedia , lookup
Cell membrane wikipedia , lookup
Cell encapsulation wikipedia , lookup
Cell growth wikipedia , lookup
Cellular differentiation wikipedia , lookup
Cell culture wikipedia , lookup
Organ-on-a-chip wikipedia , lookup
Endomembrane system wikipedia , lookup
Transcript
Cell Theory • All living things are made of cells • All cells come from cells • The smallest functioning unit of life is the cell Draw and differentiate between Prokaryotic and Eukaryotic cells .. Give the bacteria ribosomes! Prokaryotic vs. Eukaryotic Cells • Prokaryotic – – – – Smaller Lack Organelles Circular Chromosome Have ribosomes (smaller in size) – Flagella and cilia with different composition of microtubules • Eukaryotic – Larger cells – Have organelles – Linear chromosomes (and have more than one of them) – Flagella and cilia always have the 9 + 2 arrangement Differentiate between Plant and Animal Cells Other Cell Structures • Microbodies – Peroxisomes: enzymes that help neutralize peroxide and other acids and bases (ex. Catalase) Found mostly in liver, spleen, and kidney – Glyoxysomes – help produce the seed coat Other Cell Structures • In plants = Plastids – Chloroplasts (contain chlorophyll) – Chromoplasts (contain pigments which add color to leaves and flowers i.e. anthocyanin, beta-carotene) – Leukoplasts (produce and store complex carbs like cellulose and starch) Cell Wall Specialities • Plants add several substances to the cell wall: – Suberin – waxy substance found on cell walls on the bottom of the leaf to retain water – Lignin – hard substance added to the cell walls of stems to make them woody Cell Membrane Specialities • • • • For self-recognition membranes have: Glycoproteins (peripheral proteins) that diffuse… Lipoproteins (peripheral proteins) that diffuse… Transmembrane proteins span the entire membrane and bring in most hydrophillic substances like … • Membrane pores – bring in smallest substances (like carbon dioxide…) Structures inside the cell and out • Microfilaments (in the cytoplasm) – Ex. Actin and Myosin – Give added support, organize organelles, and in muscles allow multiple cells to shorten (contract) Microtubules (outside the cell) Ex. Flagella and cilia - multiple tubes make up the structure Eukaryotes (9+2 Chapter 6 Quiz 1. Compare and contrast Prokaryotic and Eukaryotic cells. 2. Compare and contrast the structure and function of a cell membrane and a cell wall. 3. Name and describe the functions of 3 cell organelles. Cell Transport • https://mail.google.com/mail/u/0/#inbox/15 0b8b177ab41ea6?projector=1